How can I create a Java Swing app that covers the Windows Title bar?

Question

I\'m working on a java swing application that will be used in a psychology experiment and the researchers have requested that I make the program \"black out the screen\" in

Answer 1

Use the setUndecorated(true) property. Note that this has to be done before making the frame visible.

JFrame frame = new JFrame();
Toolkit tk = Toolkit.getDefaultToolkit();
frame.setBounds(new Rectangle(new Point(0, 0), tk.getScreenSize()));
frame.setUndecorated(true);
frame.setVisible(true);